Joe Grand of Grand Idea Studio has released the code and complete design files for his open source Laser Position Sensor (LPS) project. The project is based on the Freescale MC9S08JM8CLC and several Linear Technology LT1491ACS op amps. (Despite the references to Parallax in the LPS project documentation, this device is an open source project […]
Category Archives: builds
APRS homebrew digital radio interface
Automatic Packet Reporting System (APRS) is a digital data communications system often used by amateur radio operators in the 2-Meter FM band. You may hear such data transmissions on 144.390 MHz FM and other frequencies. DK7IN has published an interesting project which promises to let you transmit APRS data when connected to a licensed amateur […]
AVR based power usage monitor
Dan Stahlke built an open source homebrew power usage meter based on the Atmega168. The project stores the measurements on an SD card. Just might be the ticket for monitoring holiday display power usage. Via Electronics-lab.
MSP430 based RF spectrum analyzer
Here’s a well documented RF spectrum analyzer project by
USB RGB color changer build
0x00f got a USB RGB color changer on free PCB Sunday: I switched the PGC and PGD lines…and had to solder in the 1K base resistors as I only had NPN BJT Power Transistors in my junk box. Also inserted a DC Jack to allow almost any DC Wall Part power supply easily to power […]